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1, 3, 7, and 21 are all common factors of 21 and 42.

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What are the common factors of 21 42 and 84?

The common factors of 21 42 and 84 are 21


What are the common factors of 21 and 42?

The common factors of 21 and 42 are the numbers that divide both 21 and 42 without leaving a remainder. The factors of 21 are 1, 3, 7, and 21, while the factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42. The common factors of 21 and 42 are 1, 3, 7, and 21.


What are the common factors of 21 42 and 56?

The common factors of 21, 42, and 56 are: 1 and 7


What are the common factors and greatest common factor of 21 and 42?

The common factors of 21 and 42 are 3, 7 and 21. The greatest common factor (GCF) is 21.


What number is a common factor of 21 and 42?

The factors of 21 are: 1, 3, 7, 21.The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42.The common factors are: 1, 3, 7, 21


What are the common factors of 42 and 273?

The common factors of 42 and 273 are 1, 3, 7 and 21.


What are the common factors of 12 and 21 and 42?

The common factors are: 1, 3


Common factors for 42?

The factors of 42 are 1, 2, 3, 6, 7, 14, 21, 42. For them to be common, they need to be compared to another set of factors.


What are the common factors for 42?

The factors of 42 are 1, 2, 3, 6, 7, 14, 21, 42. For them to be common, they need to be compared to another set of factors.


What prime factors do 42 and 21 have in common?

7


What is the greatest common factor of 21and42?

Factors of 21: 1, 3, 7, 21 Factors of 42: 1, 2, 3, 6, 7, 14, 21, 42 GCF (21, 42) = 21


Is 6 a common factor of 42 and 84?

Yes. The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42. The factors of 84 are 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, and 84. The common factors are 1, 2, 3, 6, 7, 14, 21, and 42. One of the common factors is 6.